[Fetch] Determine referrer when the global is not a Window object
Categories
(Core :: DOM: Workers, task)
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(Reporter: allstars.chh, Unassigned)
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(Blocks 1 open bug)
Details
According to https://w3c.github.io/webappsec-referrer-policy/#determine-requests-referrer
Step 3. Switch on request’s referrer:
"client"
Step 2. Otherwise, let referrerSource be environment’s creation URL.
However in FetchUtil::SetReferrer, it doesn't implement non-window case,
(For example, for workers and worklets)
https://searchfox.org/mozilla-central/rev/f24503d2f5d8b7e4341be8bc20d94a04a6b223d6/dom/fetch/FetchUtil.cpp#139
The workers creation URL can be found in https://html.spec.whatwg.org/multipage/workers.html#script-settings-for-workers:concept-environment-creation-url
The worklet's creation URL can be found in https://html.spec.whatwg.org/multipage/worklets.html#script-settings-for-worklets:concept-environment-creation-url
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Comment 1•1 year ago
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ReferrerInfo::CreateForFetch seems to be used in multiple places - It seems when the doc is null, we simply create a ReferrerInfo with an _empty policy.
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